* {
    margin: 0;
    padding: 0;
}

#container * {
    border: 1px solid black;
}

#container {
    width: 960px;
    margin: auto;
}

.error {
    color: red;
}

li a {
    text-decoration: none;
}

a {
    color: red;
}

ul {
    margin-left: 0;
}

a:link {
    color: red;
}

a:visited {
}

a:visited {
    color: purple;
}

ul + p {
    color: red;
}

div#container > ul {
    border: 1px solid black;
}

a[title] {
    color: green;
}

a[href="http://baidu.com"] {
    color: #112233;
}

a[href*="trus"] {

}

a[href^="http"] {

}